Precision spatial mapping with combined video and infrared signals

摘要

A system (10) for virtually modeling a physical system having immovable and movable objects includes at least two video cameras (20-24, 62), each of the video cameras being configured to provide a sequence of images. An image processing system (60) extracts modulated infrared signals from the sequence of images to identify the spatial location of objects (55, 70, 75) using information obtained from both visible light images and infrared images. With this information, a virtual reality modeling system constructs a virtual reality model. Infrared pointers that direct modulated infrared spots having a unique identification against surfaces can be used for surveying, while active (50, 57) or passive (51) infrared tags can track movable objects for virtual reality modeling.